FAQ s

About Products:

My truck's tires are 35 PSI. But when the truck is fully loaded, the recommended tire pressure is 40. How should I choose?

We recommend that you purchase a set of PSI-36 monitor caps for normal status, and a set of PSI-40 monitor caps for your tires when the truck is fully loaded If your tire pressure is between the PSI we provide, you can go up or down by one PSI. (example 35 PSI tire pressure = 34 or 36 PSI tire monitor)

My bike's tires have different PSI's, the front one is 36, and rear one is 41, how should I purchase?

On our website you can purchase tire monitors individually. So for your bike, we recommend that you purchase one 36 PSI and one 40 PSI. If your tire pressure is between the PSI we provide, you can go down by one PSI. (example 41 psi tire pressure = 40 psi tire monitor)

Our monitor cap weights 8 grams each and is tested by Les Schwab with no effects to the tire balance. Valve stem failure is due to the quality of the valve stem itself. Although all valve stems look the same, there are many differences in the long-term reliability.

Does the tire pressure monitor indicate accurately?

The pressure measurement accuracy is +/- 1 psi for low pressure and +/- 2 psi for high pressure.

What if the tire monitor caps shows half-red/half-green even when my tire is properly inflated?

Use soapy water to see if there is any air leak around the tire monitor and valve stem.

If leakage happens, remove the cap and contact us for immediate replacement.

If there is no leakage, drive your vehicle for 10 miles or more. The tire rotation primes the pressure monitors to accurately display tire pressure status in the clear window.

If the monitor cap still doesn’t show full green, please remove the cap and contact us for immediate replacement.

If you have no soapy water available at that time, replace the monitor cap with a normal valve stem cap. Follow the above instruction when you have soapy water.

Can I use a wrench when I installing the monitor caps?

No, please do not use any tool to install the monitor caps. Hand tighten only.

If I have some suggestions or comments regarding your products, what should I do?

We review every feedback and comment, they are very important to us. Please feel free to contact us and let us know your suggestions or comments. For any email or comment sent to us, we will reply to you within one working day.

About ordering and shipping:

Do you require a minimum order amount?

Single PSI units are sold on our website. There is no minimum cost per order, but the minimum quantity of each order is 2 units.

What kind of payment methods do you accept?

Domestic: We accept the payment either through PayPal, or by Visa, Master Card, Discover, and American Express cards.

International: We do accept international credit cards, and we accept over 70 forms of payment.

I don't trust online payment, can I pay by check or cash?

We do accept checks, and the product will ship after check clears. Please DO NOT send cash through the mail.

How will my order be shipped?

Shipping Time: Usually ships in one to two business days.

Shipping Rate: We use US Postal Services either “Parcel Post” for $1.95 or “Standard Flat Rate” (Priority Mail) for $5.00. Shipping cost may vary depending on the quantity you ordered. Please double check when you process the order.

Tracking Number: As soon as we ship your order, a confirmation letter will be sent to you by email with a tracking number.

Can you ship bulk without individual packaging?

Yes, we can. Please contact us before ordering, or you can write down the request as comments when you check out.

Do you sell internationally?

International Shipping Powered by

We have partnered with Bongo International to service our international customers.

At checkout, choose your international destination from the country drop down menu. Once you select your country and attempt to checkout, you will be automatically transferred to Bongo’s Secure International Checkout page where you will be provided with international shipping costs as well as duties and taxes for your shipment.

Upon completion of your order, Bongo will charge your credit card for the entire purchase. We will ship the goods to Bongo’s Global Distribution Facility where Bongo will process the order and transport the goods to your international address. There are no additional fees or registration processes with this service.